A concise synthesis of (3S,4S,5R)-1-(α-d-galactopyranosyl)-3-tetracosanoylamino-4,5-decanediol, a C-glycoside analogue of immunomodulating α-galactosylceramide OCH
作者:Tetsuya Toba、Kenji Murata、Takashi Yamamura、Sachiko Miyake、Hirokazu Annoura
DOI:10.1016/j.tetlet.2005.05.069
日期:2005.7
A concise and convergent synthesis of the C-glycoside analogue 2b of immunomodulating alpha-galactosylceramide OCH 1b starting from readily available 2,3,4,6-tetra-O-bensyl-D-galactose 3 and L-arabinose 6 is described. The synthesis features the nucleophilic addition of an alpha-ethynyl sugar 5 to the phytosphingosine-precursor aldehyde 9 and would be applicable to a variety of C-glycoside analogues of interest. (c) 2005 Elsevier Ltd. All rights reserved.